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Nature Materials 4, 9–10 (1 January 2005) | doi:10.1038/nmat1296

Spin electronics: Thin skins for magnetic sensitivity

Michael Coey

The magnetic tunnel junction is emerging as a basic building block of spin electronics, where electron spin is no longer ignored, but exploited. The furthest advanced of the spintronics devices is non-volatile magnetic random-access memory, whose long-heralded commercial debut 'next year' now really seems about to come true.